From c48af23c7ea13d91a3514b342bf0f6ec1fb3b5d4 Mon Sep 17 00:00:00 2001 From: Marcoen Hirschberg Date: Tue, 6 Oct 2009 13:47:12 +0000 Subject: add gapless playback for Nero encoded AAC files git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22984 a1c6a512-1295-4272-9138-f99709370657 --- apps/metadata/mp4.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'apps/metadata/mp4.c') diff --git a/apps/metadata/mp4.c b/apps/metadata/mp4.c index 00f0bf9d4c..a520597972 100644 --- a/apps/metadata/mp4.c +++ b/apps/metadata/mp4.c @@ -42,6 +42,7 @@ #define MP4_cART MP4_ID(0xa9, 'A', 'R', 'T') #define MP4_cgrp MP4_ID(0xa9, 'g', 'r', 'p') #define MP4_cgen MP4_ID(0xa9, 'g', 'e', 'n') +#define MP4_chpl MP4_ID('c', 'h', 'p', 'l') #define MP4_cnam MP4_ID(0xa9, 'n', 'a', 'm') #define MP4_cwrt MP4_ID(0xa9, 'w', 'r', 't') #define MP4_ccmt MP4_ID(0xa9, 'c', 'm', 't') @@ -681,6 +682,26 @@ static bool read_mp4_container(int fd, struct mp3entry* id3, id3->filesize = size; break; + case MP4_chpl: + { + /* ADDME: add support for real chapters. Right now it's only + * used for Nero's gapless hack */ + uint8_t chapters; + uint64_t timestamp; + + lseek(fd, 8, SEEK_CUR); + read_uint8(fd, &chapters); + size -= 9; + + /* the first chapter will be used as the lead_trim */ + if (chapters > 0) { + read_uint64be(fd, ×tamp); + id3->lead_trim = (timestamp * id3->frequency) / 10000000; + size -= 8; + } + } + break; + default: break; } -- cgit v1.2.3